
The S-400 air defense system was developed by Russia. It has a range range of 550km and a target range range of 400km. It can engage many targets, including fighter planes, ballistic missiles and strategic cruise missiles up to five meters above the ground. It comes equipped with sophisticated electronic warfare systems and long-range surveillance radios. India, Turkey, China and China are the markets that have purchased the S-400.
The S-400 system has undergone many upgrades and refinements over the years. The first successful tests were performed in 1999. It has a variety of capabilities, including very long range, a large target selection, and a command post that coordinates all of the missiles, batteries, and surveillance radars. An S-400 system typically includes six to eight missile bases.
It can locate and track a variety of targets including ships and aircraft. It has agile beam-steering and rapid frequency hop to intercept targets. It can track targets as far away as 600km. The S-400 also has a long-range surveillance radar, which provides a detailed view of airspace. The S-400 has the ability to track, identify, and engage targets as high as five metres above the earth. It is also one the most powerful and reliable surface-to air missile systems in the entire world.

In the last few years, the S-400 platform has experienced several high-profile failures during testing. Russia has clearly learned from its mistakes, and now produces a system that is ready to meet all of these challenges. In addition, the S-400 is also being upgraded with newer software and systems.
The S-400 is capable of detecting and tracking targets at ranges of 600 km, and it can engage up to 36 of them at once. It has been modified to work as an antiballistic-missile system. The S-400 is also equipped with a variety of radars, including the KRTP-91 Tamara (Trash Can) and the 86V6 Orion (Mask). It has been integrated to several different emitter locating platforms, including the 85V6 Orion Vega or the 59N6 Protivnik GE. It can also track stealth aircraft and has been called the "missile for the millennium".
The S-400 air defense system is not the only one with such a broad range and so many features. There is a similar Russian system, known as the NGAD, which is currently in development. The S-400, however, has many advantages over the NGAD. These include speed and modularity. It is also capable tracking and engaging large numbers targets. The S-400 can be deployed in minutes. The S-400 is also more difficult to engage when networked with AWACS.
The S-400 is a powerful weapon system but it has its limitations. The S-400's limited range can pose a problem in large-scale conflicts. It is also vulnerable in volume attacks.

The S-400 cannot do all that the NGAD can. It is far more effective to use a larger integrated air defense system. Budget restrictions limit the S-400's effectiveness.